Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

11 hosts · 180 ms

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HostCertsFirst seenLast seen
amicaldo.de 6 2026-05-19 2026-09-12
r1-v2.amicaldo.de 2 2026-10-08 2026-10-08
clara.amicaldo.de 1 2026-10-09 2026-10-09
vmc.amicaldo.de 6 2026-05-26 2026-09-20
quotesigned.amicaldo.de 2 2026-09-18 2026-10-09
rebrand.amicaldo.de 4 2026-07-15 2026-10-05
umami.amicaldo.de 5 2026-06-12 2026-10-09
proxy.umami.amicaldo.de 4 2026-06-12 2026-10-09
status.shirtful.amicaldo.de 1 2026-10-14 2026-10-14
meet.amicaldo.de 8 2026-04-24 2026-10-17
www.amicaldo.de 5 2026-05-24 2026-09-19

Programmatic access: API GET /v1/hosts/amicaldo.de (API key for paging).

Shown here: hostnames with a certificate that is valid now or expired within the last 90 days. The full history since 2013 — hostnames whose last certificate expired earlier — is a Pro plan method: GET /v1/hosts-history/amicaldo.de.